????? double microelectronics corporation of shanghai D34063 dc/dc ? ? ? ?? 3ma ? ?? 1.5a( ) ? ?? ? ?? 100hz 100khz ? ???? ? ????? ? 3.0-- 40v ?1 D34063 ???? ? , ?? - ? ??????? ?????? ?? 1.5a ???? ???? ???? ? ? ?? v cc 40 v ?? v ir -0.3~+40 v ??? v c(sw) 40 v ??? v swe 40 v ?? ? ? v ce 40 v ?? v c(dr) 40 v ? i sw 1.5 a dip-8 1.25 tamb=25 c ? sop-8 p d 0.625 w ?? t opr -40~+70 c ?? t stg -65~+150 c ? t opj 120 c dbic rev.0850 1 ? 10 ?
????? double microelectronics corporation of shanghai dbic 2 ? 10 ? t a =0~70 c, v cc =5v, ? ? ? i chg v cc =5~40v, t a =25 c 27 34 42 a ? i dischg v cc =5~40v, t a =25 c 165 240 290 a ? freq v fb = 0 v, c t = 1 nf t a = 25 c 35 42 49 khz / ? k v pin7 =v cc , t a =25 c 5.3 6.0 7.4 ?? v ipk i dischg = i chg, , t a =25 c 255 300 345 mv ? ?? 1 v ce(sat)1 i sw =1.0a,v c(sw) =v c(dr) 0.5 1.0 1.25 v ?? 2 v ce(sat)2 i sw =1.0a, i c(dr) =50ma 0.02 0.1 0.68 v ? h fe i sw =1.0a, v ce =5.0v 50 150 200 ? i cc(off) v ce =40v, t a =25 c 0 3 ua ? ?? v fb 1.230 1.255 1.270 v ???? v fb v cc =5~40v -5 5 mv ?? i ib v in =0 0 0.4 ua ? i cc v cc =5~40v, v pin7 =v cc v pin5 >v fb , c t =0.001 f 2 ???? 1 3 4 ma
????? double microelectronics corporation of shanghai ?Z v sat ??? t on ????? t off ??? ?? v f ? f (min) ???? ? ? off on t t out sat (min)in fout vvv vv ?? + sat in infout vv vvv ? ? + (min) (min) sat (max)in f out vv vv ? + () maxtoffton + min f1 min f1 min f1 t c on 5 t104 ? on 5 t104 ? on 5 t104 ? )sw(c i (max)out i2 ( ) offoffon (max)out ttti2 + () offoffon (max)out ttti2 + s r )sw(c i3.0 )sw(c i3.0 )sw(c i3.0 () min l (max)on )sw(pk sat (min)in t i vv ? (max)on )sw(pk sat (min)in t i vv ? (max)on )sw(pk sat (min)in t i vv ? o c () )pp(ripple offon)sw(pk v8 tti ? + )pp(ripple onout v ti ? )pp(ripple onout v ti ? dbic 3 ? 10 ?
????? double microelectronics corporation of shanghai ?? dbic 4 ? 10 ?
????? double microelectronics corporation of shanghai ?? ? 0 d1 1n5819 1 2 vin=12v vout l1 220uh 1 2 5 7 28/200ma 4 0 D34063 ct 470pf 8 0 r3 150 6 ct 470uf r2 1.2k 0 1 r1 27k 0 2 0 hi hi 3 c1 100uf rsc 0.22 ? vout 2 0 5v/500ma rsc 0.22 c1 100uf r2 1.2k 0 ct 470pf hi 3 D34063 hi r1 3.6k 5 6 0 0 8 4 vin l1 220uh 1 2 0 ct 470uf 0 7 d1 1n5819 1 2 1 dbic 5 ? 10 ?
????? double microelectronics corporation of shanghai ? npn hi 8 c1 100uf 4.5~6v 0 l1 110uh 1 2 r2 8.2k ct vout ct 470uf rsc 0.25 vin 0 d1 1n5819 1 2 7 3 0 5 1 0 4 2 r1 953 6 D34063 hi -12/100ma 0 r2 1.2k r4 100 ct 470pf c1 100uf r1 22k 3 0 D34063 0 hi 7 l1 220uh 1 2 rsc 0.22 5 6 hi 0 8 vout 4 vin d1 1n5819 1 2 0 r3 150 0 q1 0 1 ct 470uf 2 24/300ma dbic 6 ? 10 ?
????? double microelectronics corporation of shanghai ? npn ? pnp 0 0 ct r3 d1 1 2 r2 3 c1 vout 4 q1 0 r4 8 hi hi 5 0 1 rsc l1 1 2 0 vin 0 0 2 7 r1 6 ct D34063 r3 l1 220uh 1 2 r1 3.6k ct 470pf hi 0 vout d1 1 2 0 5 0 6 0 q1 0 vin r2 1.2k 7 ct 470uf r4 0 hi 2 c1 100uf 4 1 3 0 D34063 8 rsc 0.22 dbic 7 ? 10 ?
????? double microelectronics corporation of shanghai ? ? d3 1 2 d1 1 2 c2 0 0 3 d4 1 2 0 1 8 r2 +12v vin 6 c1 4 5 D34063 7 hi 0 c3 r1 ct 2 0 hi gnd t1 1 5 4 8 d2 1 2 0 -12v hi rsc hi 0 ? ?? ?? D34063dp08u D34063dp08ug dip-8 50pcs / tube D34063sp08u D34063sp08ug sop-8 100pcs / tube D34063sp08r D34063sp08rg sop-8 2500pcs / reel dbic 8 ? 10 ?
????? double microelectronics corporation of shanghai dip-8p ?? so-8 ?? dbic 9 ? 10 ?
????? double microelectronics corporation of shanghai ????????????????? ? ?????????? ? ? ?? ??????????????? ? ??????????? ?? ????????????????? ? ??????????? ?? ????????????? ??? ????? dbic 10 ? 10 ?
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